| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2022 | 15 Mar 2022 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2021 | 16 Nov 2021 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2021 | 15 Mar 2021 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2021 | 24 Feb 2021 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2020 | 16 Nov 2020 | 001-14315 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Mar 2020 | 16 Mar 2020 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2020 | 16 Mar 2020 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2020 | 12 Mar 2020 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2019 | 18 Nov 2019 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2019 | 31 May 2019 | 001-14315 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Nov 2018 | 16 Nov 2018 | 001-14315 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 20 Nov 2018 | 16 Nov 2018 | 001-14315 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Apr 2018 | 12 Apr 2018 | 001-35930 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Dec 2017 | 01 Dec 2017 | 001-35930 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2017 | 01 Jan 2017 | 001-35930 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Dec 2015 | 10 Dec 2015 | 001-35930 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Jan 2015 | 05 Jan 2015 | 001-35930 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Mar 2014 | 11 Mar 2014 | 001-35930 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Mar 2014 | 12 Aug 2013 | 001-35930 |